diff options
| -rw-r--r-- | drivers/pinctrl/core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index d02e8def9506..a9e3a75fb67d 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1753,6 +1753,12 @@ static void pinctrl_late_init(struct work_struct *work) pctldev = container_of(work, struct pinctrl_dev, late_init.work); + /* + * If the pin controller does NOT have hogs, this will report an + * error and we skip over this entire branch. This is why we can + * call this function directly when we do not have hogs on the + * device. + */ pctldev->p = create_pinctrl(pctldev->dev, pctldev); if (!IS_ERR(pctldev->p)) { kref_get(&pctldev->p->users); @@ -1847,6 +1853,12 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, goto out_err; } + /* + * If the device has hogs we want the probe() function of the driver + * to complete before we go in and hog them and add the pin controller + * to the list of controllers. If it has no hogs, we can just complete + * the registration immediately. + */ if (pinctrl_dt_has_hogs(pctldev)) schedule_delayed_work(&pctldev->late_init, 0); else |